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7cb7b2d39d
If `clang-cl.exe` and `lld-link.exe` are installed in `%PATH%`, the Windows release build script will now use these by default, in place of MSVC. The reason for doing this is that MSVC still has, for the past year(s), a O(N^2) behavior when building certain LLVM source files, which leads to long build times (minutes per file). A report was filled here: https://developercommunity.visualstudio.com/t/ON2-in-SparseBitVectorBase-when-com/10657991 Also added a `--force-msvc` option to the script, to use MSVC even if clang-cl is installed.